EP3891992A4 - One-level transform split and adaptive sub-block transform - Google Patents

One-level transform split and adaptive sub-block transform Download PDF

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Publication number
EP3891992A4
EP3891992A4 EP19892598.4A EP19892598A EP3891992A4 EP 3891992 A4 EP3891992 A4 EP 3891992A4 EP 19892598 A EP19892598 A EP 19892598A EP 3891992 A4 EP3891992 A4 EP 3891992A4
Authority
EP
European Patent Office
Prior art keywords
transform
split
level
adaptive sub
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19892598.4A
Other languages
German (de)
French (fr)
Other versions
EP3891992A1 (en
Inventor
Xin Zhao
Liang Zhao
Xiang Li
Shan Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tencent America LLC
Original Assignee
Tencent America LLC
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Filing date
Publication date
Application filed by Tencent America LLC filed Critical Tencent America LLC
Publication of EP3891992A1 publication Critical patent/EP3891992A1/en
Publication of EP3891992A4 publication Critical patent/EP3891992A4/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/64—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission
    • H04N19/647—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission using significance based coding, e.g. Embedded Zerotrees of Wavelets [EZW] or Set Partitioning in Hierarchical Trees [SPIHT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding
EP19892598.4A 2018-12-06 2019-12-04 One-level transform split and adaptive sub-block transform Pending EP3891992A4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862776354P 2018-12-06 2018-12-06
US201862785681P 2018-12-27 2018-12-27
US16/694,338 US11102513B2 (en) 2018-12-06 2019-11-25 One-level transform split and adaptive sub-block transform
PCT/US2019/064402 WO2020117902A1 (en) 2018-12-06 2019-12-04 One-level transform split and adaptive sub-block transform

Publications (2)

Publication Number Publication Date
EP3891992A1 EP3891992A1 (en) 2021-10-13
EP3891992A4 true EP3891992A4 (en) 2022-09-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19892598.4A Pending EP3891992A4 (en) 2018-12-06 2019-12-04 One-level transform split and adaptive sub-block transform

Country Status (6)

Country Link
US (2) US11102513B2 (en)
EP (1) EP3891992A4 (en)
JP (1) JP7209829B2 (en)
KR (1) KR102645498B1 (en)
CN (1) CN112840662B (en)
WO (1) WO2020117902A1 (en)

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KR102597838B1 (en) 2018-02-23 2023-11-02 후아웨이 테크놀러지 컴퍼니 리미티드 Position dependent spatial varying transform for video coding
KR102306884B1 (en) * 2018-03-29 2021-09-30 닛폰 호소 교카이 Image encoding apparatus, image decoding apparatus and program
US10893286B2 (en) * 2018-10-09 2021-01-12 Tencent America LLC Methods and apparatus for low-complexity MTS
CN113170147B (en) * 2018-12-04 2023-04-18 华为技术有限公司 Video encoder, video decoder, and corresponding methods
MX2021008347A (en) * 2019-01-09 2021-10-13 Huawei Tech Co Ltd Sub-picture position constraints in video coding.
WO2020162690A1 (en) * 2019-02-06 2020-08-13 엘지전자 주식회사 Method and device for processing video signal using reduced transform
WO2020166977A1 (en) * 2019-02-12 2020-08-20 엘지전자 주식회사 Method and apparatus for processing video signal
WO2020236719A2 (en) * 2019-05-19 2020-11-26 Bytedance Inc. Transform design for large blocks in video coding
CN113906754A (en) * 2019-06-25 2022-01-07 韩国电子通信研究院 Image encoding/decoding method and apparatus
EP4029239A4 (en) * 2019-09-13 2022-12-14 Alibaba Group Holding Limited Method and apparatus for signaling sub-block transform information

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Also Published As

Publication number Publication date
EP3891992A1 (en) 2021-10-13
US20200186838A1 (en) 2020-06-11
JP2022507314A (en) 2022-01-18
KR20210068101A (en) 2021-06-08
CN112840662B (en) 2024-03-08
US11706454B2 (en) 2023-07-18
WO2020117902A1 (en) 2020-06-11
US11102513B2 (en) 2021-08-24
KR102645498B1 (en) 2024-03-07
CN112840662A (en) 2021-05-25
JP7209829B2 (en) 2023-01-20
US20210352327A1 (en) 2021-11-11

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